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Back to the lesson libraryMECHANISM · 11 MIN
M02.2 CONNECT THE MECHANISM

Describe a computation so someone else can follow it

"Count the heavy parcels" sounds simple until someone asks whether 3 lb counts. Trace a real loop step by step, run it, and find the one test that catches the bug.

LESSON OVERVIEW11 min lesson

Lesson overview

"Count the heavy parcels" sounds simple until someone asks whether 3 lb counts. Trace a real loop step by step, run it, and find the one test that catches the bug.

What you’ll explore

  • Trace a loop’s changing state and choose test cases that distinguish an intended condition from an incorrect implementation.
GO TO THE SOURCE

Original explanations, connected to the research.

Python tutorial: conditions and loops
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